Post-mortem brains of SuperAgers reveal significantly larger neurons in memory region. SuperAger neurons are even larger than those in individuals 20 to 30 years younger These neurons do not have tau tangles that are a hallmark of Alzheimer’s Larger neurons in the brain’s memory region.
The last decade has brought a lot of attention to the use of microscopic robots (microrobots or nanorobots) for biomedical applications. Now, nanoengineers have developed microrobots that can swim around in the lungs and deliver medication to be used to treat bacterial pneumonia. A new study shows that the microrobots safely eliminated pneumonia-causing bacteria in the lungs of mice and resulted in 100% survival. By contrast, untreated mice all died within three days after infection.
The results are published Nature Materials in the paper, “Nanoparticle-modified microrobots for in vivo antibiotic delivery to treat acute bacterial pneumonia.”
The microrobots are made using click chemistry to attach antibiotic-loaded neutrophil membrane-coated polymeric nanoparticles to natural microalgae. The hybrid microrobots could be used for the active delivery of antibiotics in the lungs in vivo.
Scientists have been able to direct a swarm of microscopic swimming robots to clear out pneumonia microbes in the lungs of mice, raising hopes that a similar treatment could be developed to treat deadly bacterial pneumonia in humans.
The microbots are made from algae cells and covered with a layer of antibiotic nanoparticles. The algae provide movement through the lungs, which is key to the treatment being targeted and effective.
In experiments, the infections in the mice treated with the algae bots all cleared up, whereas the mice that weren’t treated all died within three days.
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New research from medical scientists at Johns Hopkins University linked abnormally formed proteins in the human brain with the psychiatric illness called schizophrenia, in a significant number of patients. While they’re not yet sure what the connection is, the study said that deformed proteins were found in the brains of many patients who were diagnosed with schizophrenia.
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More than 50 cases have been identified so far in an outbreak linked to the Sudan variant of Ebola virus, which has no approved treatment or vaccine.
Summary: Neurons in the memory-associated entorhinal cortex of super-agers are significantly larger than their cognitively average peers, those with MCI, and even in people up to 30 years younger. Additionally, these neurons contained no signs of Tau, a hallmark of Alzheimer’s disease.
Source: Northwestern University.
Neurons in an area of the brain responsible for memory (known as the entorhinal cortex) were significantly larger in SuperAgers compared to cognitively average peers, individuals with early-stage Alzheimer’s disease and even individuals 20 to 30 years younger than SuperAgers — who are aged 80 years and older, reports a new Northwestern Medicine study.
Based on an analysis of just under half a million records in the UK Biobank, people who drink two to three cups of coffee each day tend to live longer and exhibit less cardiovascular disease compared with those who abstain from the beverage.
While the research doesn’t claim drinking more coffee adds years to your life, it’s nevertheless an intriguing association that scientists are keen to investigate further. It’s also important to weigh the findings against previous studies linking brain shrinkage and an increased risk of dementia with a daily habit of six or more cups of coffee.
“In this large, observational study, ground, instant and decaffeinated coffee were associated with equivalent reductions in the incidence of cardiovascular disease and death from cardiovascular disease or any cause,” says electrophysiologist Peter Kistler, from the Baker Heart and Diabetes Institute in Australia.
Circa 2016 Basically this could be modified to make our own immune system more advanced to evolve to each virus by itself.
Mimivirus defence system might lead to new genome-editing tools.
Summary: SARS_CoV_2, the virus responsible for COVID-19 infects and replicates in astrocytes, reducing neural viability.
Source: FAPESP
A Brazilian study published in the journal PNAS describes some of the effects infection by SARS-CoV-2 can have on the central nervous system.
